Effect of Solvent Properties on the Swelling Assisted with Protrusion of PS@TiO_2

摘要

Janus particles have particular properties and potential application for their asymmetry dual-faced structure. In this report, we study the effect of the solubility parameter and the polar fraction of solvent on the swelling assisted with protrusion of polystyrene @ titanium dioxide (PS@TiO_2) core-shell microspheres. The resultant titanium dioxide/polystyrene (TiO_2/PS) Janus particles were characterized by scanning electron microscope. Results indicated that solvent with the solubility parameter of about 9.3 (cal/cm~3)~(1/2) and with low polarity such as dimethylbenzene, carbon disulfide and methyl methacrylate exhibited the preferable swelling efficiency.